import java.util.*;

public class Main {

	static Scanner sc;
	static int n;
	static long numerator;
	static long denominator;

	public static void main(String[] args) {

		sc = new Scanner(System.in);
		numerator = 1;
		denominator = 1;

		
		n = sc.nextInt();
		input(0, n);
		input(n, sc.nextInt());

		long gcf = calculateGcf(numerator, denominator);
		numerator /= gcf;
		denominator /= gcf;

		System.out.println(numerator+" "+denominator);
	}

	static void input(int l, int m) {

		for(int i=l;i<m;i++) {
			if(i % 2 != 0) {
				numerator *= sc.nextInt();
			} else {
				denominator *= sc.nextInt();
			}
		}
	}

	static long calculateGcf(long m, long n) {
		if(m == 0 || n == 0) {
			return 1;
		}
		long s = 0;
		while(m % n != 0) {
			s = m;
			m = n;
			n = s % n;
		}
		return n;
	}
}